body {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    background-color: floralwhite;
}

#controls {
    margin: 10px;
}

#shapes-container {
    position: relative;
    width: 80%;
    height: 80%;
    border: 1px solid #ccc;
    background-color: #fff;
}

.shape {
    position: absolute;
    cursor: grab;
}

.circle {
    width: 100px;
    height: 100px;
    background-color: red;
    border-radius: 50%;
    top: 20px;
    left: 20px;
}

.square {
    width: 100px;
    height: 100px;
    background-color: blue;
    top: 150px;
    left: 20px;
}

.rectangle {
    width: 150px;
    height: 100px;
    background-color: green;
    top: 300px;
    left: 20px;
}

.triangle {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 100px solid yellow;
    top: 450px;
    left: 20px;
}

h1 {
    font-size: 40px;
    color: cadetblue;
    text-align: center;
}

p {
    text-align: center;
}

button {
    background-color: coral;
}